Home / 56,723.20-85,084.80-19,787.20

Finding the Fourth Proportional to 56,723.20, 85,084.80 and 19,787.20

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Solution

The fourth proportional to 56,723.20, 85,084.80 and 19,787.20 is: 29,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,723.20 : 85,084.80 = 19,787.20 : x
  2. Step 2: Convert to fraction form
    56,723.20/85,084.80 = 19,787.20/x
  3. Step 3: Cross multiply
    56,723.20x = 85,084.80 × 19,787.20
  4. Step 4: Simplify right side
    56,723.20x = 1,683,589,954.56
  5. Step 5: Solve for x
    x = 1,683,589,954.56/56,723.20
  6. Step 6: Final answer
    x = 29,680.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.